{"product_id":"ntk-25613-oxygen-sensor","title":"NTK 25613 Oxygen Sensor - Downstream, Downstream Left or Downstream Right","description":"\u003ch2\u003eOverview of NTK Direct Fit Oxygen Sensor 25613\u003c\/h2\u003e\u003cp\u003eThe NTK Direct Fit Oxygen Sensor 25613 is engineered for precise emission control in select BMW and Mercedes-Benz models. This heated oxygen sensor features a specific fit design, ensuring compatibility and reliable performance for vehicles such as the BMW 3 Series and Mercedes-Benz C-Class.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated oxygen sensor for faster response times\u003c\/li\u003e\n\u003cli\u003eSpecific fit for accurate installation on BMW and Mercedes-Benz vehicles\u003c\/li\u003e\n\u003cli\u003e19.75-inch wiring harness length for optimal routing\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18mm thread diameter\u003c\/li\u003e\n\u003cli\u003eFour-wire configuration for enhanced sensor functionality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDirect Fit Oxygen Sensor Product Line Details\u003c\/h2\u003e\u003cp\u003eThe NTK Direct Fit Oxygen Sensor line is designed to provide exact replacement sensors that match OEM specifications. This product line focuses on delivering sensors with precise wiring harness lengths, thread sizes, and mounting types to ensure seamless integration with the vehicle’s emission system. The 25613 sensor maintains these standards, offering a direct fit solution for improved installation efficiency and sensor performance.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Features\u003c\/h2\u003e\u003cp\u003eThe NTK 25613 oxygen sensor is a heated sensor type, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. It features a 19.75-inch wiring harness length, providing sufficient cable length for proper installation without excess slack. The sensor uses a threaded mounting type with an 18mm thread diameter, compatible with specific BMW and Mercedes-Benz models. The four-wire design supports both the sensor signal and heater circuit, ensuring accurate oxygen level readings and reliable heater operation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 1 Series M, 128i, 135i\u003c\/li\u003e\n\u003cli\u003eBMW 3 Series models including 323i, 325i, 328i, 330i, 335i, and their xDrive variants\u003c\/li\u003e\n\u003cli\u003eBMW 5 Series models such as 525i, 528i, 530i, and their xDrive versions\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz C-Class models including C240, C320, C55 AMG\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz E-Class models like E320, E500, E55 AMG\u003c\/li\u003e\n\u003cli\u003eAdditional Mercedes-Benz models including CLK, CLS, SL, ML, and AMG variants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Oxygen Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light triggered by faulty oxygen sensor readings\u003c\/li\u003e\n\u003cli\u003ePoor fuel economy due to incorrect air-fuel mixture\u003c\/li\u003e\n\u003cli\u003eIncreased vehicle emissions failing regulatory standards\u003c\/li\u003e\n\u003cli\u003eEngine performance problems such as rough idling or hesitation\u003c\/li\u003e\n\u003cli\u003eFailed emissions tests related to sensor malfunction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and install the NTK 25613 sensor, taking care to avoid damaging the wiring harness. Verify the 18mm threaded mounting fits securely and that the four-wire connector is properly attached. It is recommended to apply anti-seize compound on the threads to facilitate future removal. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNTK oxygen sensors are manufactured to meet strict OEM standards for durability and accuracy. The Direct Fit Oxygen Sensor 25613 undergoes rigorous testing to ensure reliable performance in emission control systems. While specific warranty details may vary, NTK typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s long-term functionality.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":43964830154933,"sku":"BFPZ-25613","price":96.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_25613_Fro.jpg?v=1775006831","url":"https:\/\/www.partcatalog.com\/products\/ntk-25613-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}